William mason



(No Model.) W. MASON.

, BREEGH LOADING FIRE ARM. No. 247,373. Patented Sept. 20.1881.

2;, i/dlruzz UNITED STATES PATENT OFFICE.

TO THE COLTS PATENT FhtE-ARMS MANUFACTURING COMPANY, OF SAME PLACE.

BREECH-LOADING FIRE-ARM.

SPECIFICATION forming part of Letters Patent No. 247,373, dated September. 20, 1881.

Application filed May 12, 1881. (N model.)

To all whom 1' it may concern:

Be it known that I, WM. MASON, of Hartford, in the county-of Hartford and State of Connecticut, have invented anew Improve- 5 ment in Breech-Loading Fire-Arms; and Ido hereby declare the following, when taken in connection with the accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the I0 same, and which said drawings constitute part of this specification, and represen in- "igure 1, a sectional side viev ot' the parts in their normal condition; Fig. 2, the same with the breech open and the lammer in corn :5 sequent cocked position; Fig 3, transverse section through the barrels an i rock-shaft.

This invention relates to an improvement in that class ot arms in which th(- barrel is hung forward and so that the breech end tips up to 26: open the cartridge-chamber, and known as barrel tilting up at. the breech, and with special reference to what are known as concealed hannners that is, the hammer is with in the receiver of the arm and cooked in the act of tilting the barrels.

Theinvention consists in the arrangement of a rock-shalt transverse to the barrels, and which is substantially the axis on w hich the barrels turn, the said shai't provider with a cam-like 3o radial projection, against whch a corresponding projection on the barrel will press in the act of tilting, the said shal'ti iconnection with the hammer, so that as the shaft. rotates the hammer is thereby turned to full-cock, as more 5 fully hereinafter (lCSCl'llJG( A represents the frame or receiver, extending from beneath the barrel.- B, as at U, the for ward end rounded to receive the forearm Din substantially the usual man ter. in a recess in 40 thereceiverthehanimer h] is hung upon a pivot, a, the upper end of the hannncr arranged to strike a firing'pin, I); or it maybe constructed with a projectiou which wil. pass through an opening in the breech end the receiver to strike theprimcr.

Themainspringisol'nsual\lshape. ()nearm, (I, rests against a stationary point in the receiver, the other end, 0, resting upon the hammer forward of the pivot.

F is a transverse rockshal't arranged at the and on the under side of the barrel a.

rock-shaft.

torward end of the receiver, beneath the barrel, and formingsubstantially the axis on which the barrels turn in tilting. On this rock-shaft a cam-like projeetiomf, is formed upon the upper side, and asimilar cainprqjection, h, below,

projecting log, I, is formed to hook over the rock-shaft, its front surface engaging the cams fh, as shown, so that when the barrel is tilted the surface of the lug I above the pir'ot bears against; the cam f and turns the rock-shaft forward. Then, in returning the barrels, the surface of timing on the other side of the rook-shaft bears upon the cam h and turns the rock-shaftin the opposite direction. 05

From the rock-shaft F an arm, L, extends rearward beneath an arm, P, which extends forward from the hammer, and so that when the barrels are closed, as in Fig. 1, and theparts in their normal condition,thehammer E stands forward in the firing position, the arm P of the hammer resting slightly above the end of the arm L.

Tilting the barrels, or turning them fromthe position in Fig. l to that in Fig. 2, the rookshaft is turned, as before described, which raises the arm L, and that, bearing against the arm P of the hammer, turns the hammer backward, as seen in Fig. 2, until it engages with thesearlt. Then when thebarrels arereturned the arm L also retnrns,leayingthe hammerin the cooked position, from which it is released by the trigger in the usual manner.

It will be seen by those skilled in the art that instead of the rigid arm L on the rock-shaft operating beneath the arm P of the hammer, other connections may be made between the rock-shaft and hammer, whereby the rotation of the rock-shaft by the turning of the barrel will cock the hammer. Such intermediate 0 mechanism will constitute the subject-matter of independent applications for Letters Patent which I am about to make.

While the two cams-f IL on the rock-shaft are preferred, it will be evident to those skilled in 5 5 the art that the lower cam, 71, may bedispensedgf" with, the hammer at'terdisclrarging serving to return the rock-shalt to its position before cocking, or the barrels may otherwise engage the It will be understood that while particularly designed for double-barreled sporting or shot guns, this device is applicable to single tilting barrels.

5 I claim In fire-arms in which the breech is opened by the barrel tilting up at the breech, the combination'therewith of a transverse eir-shaft arranged substantially at the axis upon which 10 the barrel turns, an extension from the barrels into connectiouwith said rock-shaft, so that by the tilting" of the barrels and the consequent 1 rotation of the rock-shaft turns the hammer to full-cock, substantially as described.

\VILLIAM MASON.

Witnesses J. H. SHUMWAY, L. D. ROGERS. 

